メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.062436278371 34.8743864722284, 137.062445316916 34.8743941579072, 137.062760203349 34.8746736041257, 137.062808645314 34.8747248470895, 137.062327647399 34.8748864229161, 137.062907279012 34.8754549950289, 137.062167276672 34.875859047585, 137.062400834901 34.8762204054145, 137.062152198253 34.8763337957665, 137.061502625739 34.8765429740791, 137.06149266841 34.876343792708, 137.0614974339 34.87594186056, 137.061502474842 34.8748754331793, 137.06150793979 34.8737194927562, 137.061691798865 34.8738452235915, 137.062159574789 34.8741807958832, 137.062331863205 34.8743088515826, 137.062424819123 34.8743779406914, 137.062436278371 34.8743864722284)) ^^http://www.opengis.net/ont/geosparql#wktLiteral